Holywood's Rory McIlroy is back at the top of the golf world rankings after fellow pro Jordan Spieth missed the cut at The Barclay's.

Spieth finished runner-up to Jason Day at PGA Championship a fortnight ago to claim the number 1 spot, but his spell at the top was short lived after he failed to make the cut in New Jersey at the weekend after following his four-over-par first-round 74 with an 73 to finish five strokes over the cut.

McIlroy has today returned to the top of the world rankings without having to lift a club.

The 22-year-old American is is the first player to miss the cut in his first start after becoming world number one.

Australian Jason Day made it back to back wins as he took home The Barclay's trophy after a brilliant bogey-free final-round eight-under-par 62 in New Jersey to secure his third victory from his past four starts.

Day's win yesterday now means he moves to third in the overall world rankings.